Can piercing and dispensing device



Dec. 19, 1933. F. A. PRAHL CAN PIERCING AND DISPENSING DEVICE FiledJuly' 13, 1933 31W ,wmw i Patented Dec. 19, 1933 1,939,792 csnrmaoma anDISPENSING DEVICE Frederick A. Prahl, New York, N.

Y., assignor to Continental Can Company, Inc., New York, N. Y., acorporation of Application July 13, 1933. Serial No. 680,324 6 Claims.(Cl. 221-23) The invention relates to new and useful improvements in a.can piercing and dispensing device which is particularly adapted forattachment to a hermetically sealed metal can to be used for dispensingthe contents thereof.

An object of the invention is to provide a can dispensing device whereinthe dispensing device contacts with the double seam of the can, forminga liquid-tight joint therewith, and is rigidly secured to the can bycooperating parts associated with the dispensing device and can, whichdis,

pensing device is also provided with a cutter for piercing the end wallof the can for forming a dispensing opening therethrough.

A further object of the invention is to provide a dispensing device ofthe above type wherein said opening may be first cut and the dispensingdevice caused to contact with the double seam and the dispensing devicesubsequently joined m to the can.

These and other objects will in part be obvious and will in part behereinafter more fully described.

In the drawing:

Figure 1 is a view partly in side elevation and partly in verticalsection through a can and dispensing device embodying the improvementswith the dispensing device attached to the can.

Figure 2 is a view partly in side elevation and 3 partly in verticalsection showing the can with the oil dispensing device attached theretoinverted for the dispensing of the contents of the can into the crankcase chamber of an engine.

Figure 3 is a bottom plan view of the dispensing 3 device detached froma can.

Figure 4 is an enlarged vertical section through a portion of thecontainer and the can, with the container attached to the can.

Figure 5 is a sectional view of a portion of the clamping means whichcooperates with the can in the securing of thedispensing device to thecan.

Figure 6 is an end view of a can embodying the improvements after ithas'been cut, the contents dispensed, and the dispensing device removed.

The invention is directed to a combined can and oil dispensing devicefor use iii connection with the dispensing of lubricating oilmarketed inhermetically sealed metal cans. The pil is put up by the originaldispenser in sealed cans o and is sold in these original packages at thefilling stations. The cans may be opened in the presence of the customerand emptied into the chamber where it is to be utilized for lubricatingpurposes through the aid of the improved dispensing device. The ipensing device includes a New .York

funnel having a body portion to which is attached a cutter used forpiercing the can end. The can, after the end is seamed thereto, isshaped or deformed so as to provide spaces in the double seam where thediameter of the can is reduced up slightly. These spaces are of similarshape and disposed in the double seam so that the distances between therecesses are all equal. The body portion of the dispensing device isprovided with a recess adapted to receive a resilient gasket which is sodisposed as to contact with the outer face of the deformed double seamand provide a liquid-tight joint therebetween. Attached to the bodyportion is a clamping ring. Said clamping ring is mounted on the bodyportion so that it to may be rotated thereon. The clamping ring has anopening therethrough and-at spaced intervals there are lugs projectinginwardly or radially of the opening. These lugs are shaped to conform tothe recesses in the double seam of the can so that the clamping ring canbe lowered over the double seam, placing the lugs just beneath the same.A turning of the ring will cause the dispensing device to be clamped tothe can. These lugs on the ring are inclined so that the turning 30 ofthe ring draws the gasket into tight sealing contact with the deformeddouble seam.

Referring more in detail to the drawing, the can to which the dispensingdevice is attached is illustrated at 1 in the drawing, Said can has anend 35 2 secured thereto by a seam which is hermetic or airtight, andthis seam is preferably formed by the folding of the metal parts and isreferred to as a double seam. The double seam joining the end 2 to thebody portion-1 is indicated at 3 in the drawing. After this double seamhas been formed, it is then reshaped or deformed so as to providerecesses 4, 5 and 6. These recesses are all similarly shaped and aredisposed an equal distance from each other. As shown in the drawing,there are three of these recesses and the centers of the recesses. are120 degrees apart. These recesses are formed by pressing the double seaminwardly so as to leave the diameter of the can at the recesssubstantially the same as the diameter of the body of the can, while thediameter of the double seam between the recesses is as usual, i. e.larger than the diameter of the can. This is caused by the double seambeing formed between the outwardly projecting flange on the can body andthe overhanging flange of the can end.

The oil dispensing device consists of a funnel having a spoutportion 7which is formed integral with the body portion 8 as it tapers into thespout. The body portion 8 is provided at the open end thereof with thelaterally projecting ledge 9. There is a recess in said body portionwhich is indicated at 10 and located in this recess is a resilientgasket 11. This gasket is adapted to contact with the deformed orreshaped double seam 3 as indicated in Figs. 1 and 4 of the drawing.

Attached to the body portion of the dispensing device are three cutters12, 13 and 14. These cutters are all similar in construction, and thedescription of one will answer for the others. Each cutter includes apiercing point 15 formed at the outer end of the cutting blade 16. Thiscutting blade is shaped so as to cut the can end close to the doubleseam and along the double seam as indicated at a in Fig. 6 of thedrawing. Extending laterally from the blade portion 16 are wings 17 and18. These wings are each provided vwith an opening 19 and with cuttingedges indicated at 20. It is understood that there is a cutting edgeleading to the piercing point 15 along the lower edge of the blade 16 asviewed in Fig. 4. These cutting edges merge into the cutting edges 20formed on the wings 17 and 18. The cutting edges 20 cut the can endalong the lines b--b in Fig. 6 of the drawing. The metal cut out by thecutter contactswith the wings and is rolled downwardly and inwardly asindicated at c in Fig. 4 of the drawing. This produces in the can end 3relatively large dispensing openings which are disposed so that theircenters are 120 degrees apart. The cutters are attached to the bodyportion of the dispensing 'device and project beyond the open end asufficient distance so that all the openings will be formed before thegasket 11 is brought into contact with the double seam. The cutting ofthe end is accomplished by placing the can on a solid foundation, thenplacing the piercing point just inside of the double seam of the end andby downward pressure on the dispensing device the cutters are caused topierce the end and the metal and form the opening.

Surrounding the projecting ledge 9 is a ring 22. Attached to the ring 22is a plate 23 which overlies the upper face of the ledge as viewed inFigs. 1 and 4. Said plate is connected to the ring by suitable bolts 24.The ring has an opening 25 therethrough. The edge of the opening 25 isprovided with lugs projecting inwardly or radially of the opening. Theselugs are indicated at 26. The lugs are disposed with their centers 120degrees apart and they are so proportioned that when the ring, which isonly slightly larger in diameter than the originally formed double seam,is placed over the double seam, bringing the gasket into contacttherewith, these lugs pass down through the recesses 4, 5 and 6,respectively. This places the lugs so that the advanced edge 26a the eofis below the double seam. By tuming the ring in the direction of thearrow of Fig. 5, the lug is placed beneath the double seam at the sidesof the recesses and will contact therewith and draw the dispensingdevice downward until the gasket is brought into tight sealing enagementwith the double seam. This forcing of the dispensing device downward isaccomplished by the inclination of the lugs 26. These lugs cooperatingwith the double seam between the recesses serve as a means for rigidlyattaching the dispensing device to the can. The turning of the ring isto bring about this attachment of tits dispensing device to the can. Thebody portion of the dispensing device of course does not turn as thecutters are in the holes formed in the end. The longitudinal movement ofthe dispensing device into tight sealing contact with the double seam isnot in any way restrained by the cutters, for the reason that theopenings are fully formed at this time and there is little or no cuttingof the metal which takes place during the period of clamping thedispensing device to the can.

The cutters of the oil dispensing device are placed in contact with theend of the can and the openings are formed therein while the can restson a solid support. The ring is then turned to firmly join thedispensing device to the can, after which the can with the dispensingdevice attached is inverted to a position such as shown for example inFig. 2 and the spout inserted in the opening 27 of the crank casing 28for thus dispensing the lubricating oil into the chamber where it is tobe used for lubricating purposes.

It is obvious that minor changes in the details of construction may bemade without departing from the spirit of the invention as set forth inthe appended claims.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is:

1. The combination of a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body portion and adapted to contactwith the double seam of the can, a plurality of cutters attached withinthe body portion of the dispensing device and having their piercingpoints and cutting edges projecting from the open end of the bodyportion, said body portion of the dispensing device and said can havingcooperating devices whereby the gasket may be drawn into tight sealingcontact with the double seam of the can and the dispensing devicerigidly attached to the can.

2. The combination of a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body portion and adapted to contactwith the double seam of the can, a plurality of cutters attached withinthe body portion of the dispensing device and having their piercingpoints and cutting edges projecting from the open end of the bodyportion, said body portion of the dispensing device and said can havingcooperating devices whereby the gasket may be drawn into tight sealingcontact with the double seam of the can and the dispensing devicerigidly attached to the can, each of said cutters including cuttingedges inclined away from the piercing point for cutting said .can endalong the double seam and thence along lines leading inwardly from thedouble seam.

3. The combination of a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body portion and adapted to contactwith the double seam of the can, a plurality of cutters attached withinthe body portion of the dispensing device and having their piercingpoints and cutting edges projecting from the open end of the-bodyportion, said body portion of the dispensing device and said can havingcooperatingdevices whereby the gasket may be drawn into tight sealingcontact with the double seam of the can and the dispensing devicerigidly attached to the can, each of said cutters including a bladehaving a piercing point with cutting edges leading therefrom and sidewings extending inwardly from the blade substantially parallel to eachother and having cutting edges arranged so that the metal isprogressively cut from the piercing point along the double seam and thenalong parallel lines exing their piercing points and cutting edgesprojecting from the open end of the body portion,

tending inwardly from the double seam.

4. The combination of a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body portion and adapted tocontactwith the double seam o! the can, a plurality of -cutters attached withinthe body portion oi the dispensing device and having their piercingpoints and cutting edges projecting from the open end of the bodyportion, said body portion oi the dispensing device and said can havingcooperating devices whereby the.

gasket may be drawn into tight sealing contact with the double seam oithe can and the dispensing device rigidly attached to the can, each ofsaid cutters including a blade having a piercing point with cuttingedges leading therefrom and side wings extending inwardly from the bladesubstantially parallel to each other and having cutting edges arrangedso that the metal is progressively cut from the piercing point along thedouble seam and then along parallel lines extending inwardly from thedouble seam, said wings having openings therethrough disposedso as todrain the can during the dispensing of the contents thereof. h

5. The combination of a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body portion and adapted to contactwith the double seam of the can, a plurality of cutters attached withinthe body portion of the dispensing device and hav-' so as to passthrough said andtobe' turned beneath the double seam 1 drawing theresilient gasket into tight sealing contact with the double seam.

6. The combination 01' a can and an oil dispensing device including abody portion, a spout formed integral with said body portion, aresilient gasket attached to said body, portion and adapted to contactwith the double seam of the can, a plurality of cutters attached withinthe body portion 01' the dispensing device and havingtheir piercingpoints andcutting edges projecting from the open end of the bodyportion, said can having the double seam thereof deformed so as toprovide spaced recesses of less radial distance from the centerot thecan than the outer face of the double seam, a ring rotatably attached tosaid body portion and having an opening of slightly larger diameter thanthat of the double seam of the can, said ring having inwardly projectinginclined lugs shaped and disposed and beneath the double seam when thering is rotated for drawing the resilient gasket into sealing contactwith the double seam of the can.

mnnanrcx A. PRAHL.

